• Dr. Bob@lemmy.ca
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    1 month ago

    Be cautious with the “mate for life”. All animals of both sexes will slut it up and bang anything receptive and some things that aren’t. Ever have your leg jumped by a dog? There are some animals that are pair bonded for raising the young - that does not imply that they both contributed to the genetic content of the offspring.

      • Dr. Bob@lemmy.ca
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        1 month ago

        There is great work on prairie vs mountain voles. Mountain voles are pair bonded and meadow voles are not (I think that’s right). All of them are rodent polyamorous nymphomaniacs with respect to the breeding, it’s just that the mountain ones prefer co-nesting with the same vole regardless of who they’re banging. There is a brain difference with respect to oxytocin sensitivity that seems to control the nesting behavior.